Coal-leveling machine for beehive-ovens.



W. 'SANGSTBR.

COAL LEVELING MACHINE FOR BEEHIVE OVENS.

APPLIUATION FILED JULY 7,1903. 1,089,675. Patented Mar. 10, 1914,

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W. SANGSTER. COAL LEVELING MAGHINE FOR BEBHIVE OVENS.

APPLIOATION FILED JULY 1,1908.

Patented Mar. 10, 19M

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COLUIIIA PLANOORAPH c0.. WASHINGTON, D. c.

WITNESSES: 45. 0% 5M W. SANGSTER. GOAL LEVBLING MAGHINE FOR BEEHIVE OVENS.

APPLICATION FILED JULY 7.1908.

1,089,675. Patented Mar. 10, 1914.

4 SHEETS-SHEET a.

VII/II/Il/IIIII/III/IIA .1@' wzii By his Allomey,

COLUMBIA PLANOGRAPH 60.. WASHINGTON, D. c. r

Patented Mar. 10, 1914.

4 SHEETS-SHEET 4.

APPLIUATION FILED JULY 7,1908.

COLUMBIA PLANOGRAPH co, WASHINGTON, D. c,

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WILLIAM SANGrSTER, OF COVINGTON, VIRGINIA, ASSIGNOR TO COVINGTON MACHINE COMPANY, A CORPORATION 013 VIRGINIA.

COAL-LEVELING MACHINE FOB, BEEI'IIVE-OVENS.

resents.

To all whom it may concern Be it known that I, VViLLIAM SANGSTER, a citizen of the United States, and resident of Co'vington, Alleghany county, State of Virginia, have invented a new and useful Improvement in Coal-Leveling Machines for Beehive-Ovens, of which the following is a specification.

My invention relates to improvements in machinery for leveling the coke within coke ovens, and particularly to that class of machine for leveling the coke in what are known beehive ovens, as distinguished from other classes of ovens. The so called beehive oven is an oven made in the form of a hemisphere, access being bad to the interior thereof, through a central opening in the top termed the eye and through an opening at the side on the level of the bottom through which the oven is dis charged.

The present invention consists of a leveling device which is carried upon a carriage moving upon a track placed above and preferably at one side of a row of such beehive ovens, and which carriage by means of suitable power, is caused to travel along and over the row of ovens and by appropriate mechanism to insert the tool into each oven and then so rotate it preferably horizontally, that all parts of the coke within the oven will be successfully subjected to its effect, and then to withdraw it, move forward and then subject the next oven in the row to a similar procedure.

The invention will be best understood by reference to the accompanying four sheets of drawings in which- Figure l is a vertical elevation of the leveling tool attached to the table of the carriage upon which it moves, shown in connection with a beehive oven in a vertical cross-section. Fig. 2 is a vertical elevation partly in cross-section of the arm of the leveling tool. Fig. 3 is a vertical cross-section of the mechanism for actuating the tool. Fig. l is a vertical. elevation of the tool showing the leveling arm drawn up, or retracted. Fig. 5 is a cross-section of the actuating mechanism on the line 55 of Fig. (3 looking in the direction of the arrows. Fig. 6 is a vertical section of the actuating mechanism on the line 6-43 of 5 look ing in the direction of the arrows. Fig. 7 is a horizontal section through the leveling Specification of Letters Patent.

Application filed July '7, 1908.

Patented Mar. 10, 1914.

Serial No. 442,306.

arms, and Fig. 8 a vertical section through the arms, and mechanism, when the former are drawn up in the position shown in Fig. 41. Fig. 9 is an elevation of a detail on a large scale of the mechanism shown in Fig. 3 for controlling the shafts. Fig. 10 is a plan view of the same mechanism, a portion of which is taken on line 9 9 of Fig. 3, looking in the direction of the arrows.

Similar letters refer to similar parts throughout the several views.

In the drawings, and preferably in Fig. 1, 0 represents the oven, which is provided with a central opening or eye in the top and a door 1) at one side on the level with the floor.

S represents one of a pair of rails, extending along the top of av row of coke ovens upon which moves a carriage, carrying the leveling device, similar to that described and claimed by me in an application for Letters Patent to another form of coke leveling machine, filed by me contemporaneously with this application, in the United States Patent Otlice under Serial Number 442,305 for coal leveling machines for beehive ovens, now forming the subject of United States Letters Patent No. 1,067,197, of July 8th, 1913. The carriage 1 carries a truck which in turn carries a rotating table 13 actuated as described in said application which in turn carries two beams 14, mounted on trunnions 15 so that they may be adjusted angularly, at any angle to the plane of the table. At one end of the beam 1 1 is the tower frame 17, which supports and carries the cylinder 18, and the leveling tool proper. The cylinder is raised and lowered by a sprocket wheel as shown in said Letters Patent, which, through the sprocket 21 and worm 22, gives motion to the drum 23, which in turn winds and unwinds the cable 2st carrying the cylinder 18.

In the present form of apparatus, as in that referred to in the aforesaid Letters Patent, the mechanism for inserting and rotating the leveling arms, consists, as appears from Figs. 1, 2, 3, and 4:, of a vertical cylinder 18 which is arranged to slide vertically in a cylinder 4-2. The cylinder 18 fits closely within the cylinder 12 so as to slide vertically therein, and it is provided with a spline, or other connection, which will prevent it from rotating independently thereof, and will cause it to rotate with the cylinder 12 when the latter is rotated. This cylinder 42 is held in a suitable head or hearing 57 on the ends of the arms 14. as shown in Figs. 1 and 3, and it is surrounded at the top by a toothed rack 28, which is splined or bolted to it and which engages with a gear wheel 27 arranged upon suitable bearings in the arm 1% through which a retary motion may be imparted to the cylinder 42 and the cylinder 18, by means of a pulley and belt 26 on the shaft of the gear wheel 2?.

In the interior of the cylinder 18, there is a sliding tube 3-1- which is of such relative dimensions that it fits closely into, and is rotated with the cylinders 18 and 42. Tie tube 3% carries at its lower extremity a crosshead 68 as shown in Figs. 1 and 2, and to this crosshead is attached a second cylindrical tube 78 which is of larger diameter than tube 35% and fits and can slide over the lower extremity of the latter as shown in Fig. 2. The cylinder 18 is eXteriorly flanged at the top as shown in Fig. 3 and is closed at the top by the circular flanged head 81 which is of the form shown, and at the bottom by the circular head 80, the heads 80 and 31 being held together by the vertical rods 82. The head 81 is of the form shown in Fig. 3, and is surrounded by a plate 51 which is permanently attached to it so that as the cylinder 18, and the heads 80 and 81 rise or fall the plate 51 necessarily moves vertically with them. The heads 80 and 81 are driven tightly into the head 18 so as to be practically integral therewith so far as rotation is concerned. The tube 3st passes up into a suitable seat in the head 81 and passes outand through suitable opening in the head 80. 1-1 second tube 65 is provided within the tube 3 1- which passes upward through an appropriate opening in the center of the head 81 as shown in Fig. 3. The exterior of the tube 65 is provided at the lower end with a screw threaded surface as shown in Figs. 3 and 6. The lower extremity of the tube 65- is surrounded by a nut or collar 76 which, as shown in Figs. 2, 5 and 6, is pivoted to the end of the cylinder 78 by the pins 77. The collar 76 is provided on its inner surface with a screw thread corre sponding to the screw threaded surface on the cylinder 65, so that by turning the cylinder 65 the nut or collar 76 works up and down and carries with it the tube 78. Slots 69 of appropriate length are provided opposite each other at either side of the cylinder 34. in which the pins 77 are arranged to travel up and down.

The leveling arms of which there are two ordinarily, are composed of two tubular portions 31 and 32 and are shown in Figs. 1, 2, 7 and 8. The portions 31 are pivoted by means of the horizontal pivot 10 as shown in Figs. 2, 7 and 8, to the extension 75 which forms the lower end of the tube 7 8. The pivoted portions 31 are each connected by means of a bracing strutor link 66 as shown in Figs. 1 and 2, with the head 67 on the vertically moving tube 78, and by raising and lowering the tube 78 upon the tube 3%, the arms 31 will be raised and lowered by means of the links 66. The outer tubular portion 32 is arranged to slide freely within the inner portion 31 as shown in Fig. 2, and it is moved in the latter by means of a screw rod which passes through a thread ed opening in the collar By rotating the rod 33, the part 32 may be moved in and out. The inner end 33 passes through the collar 36 on the inner end of the part 31, and terminates in the beveled gear wheels 74 which engage with the double gear wheels 73, on the horizontal pivot 10. As will be seen from Fig. 4e, when the links 66 are in a. vertical position, they are off center, so that any downward pressure upon the crosshead 67 has the effect of making the links press downwardly and outwardly on the arms 31, thereby tending to spread them and cause them to fall.

In the interior of the tube 63 is shaft 6% which extends the entire length of the mechanism. he shaft 64: at its lower end passes out through a bearing in the head 75 on the lower end of the tube 31 as shown in Fig. 8 and carries a beveled gear wheel 72 engaging with the inner faces of the beveled gear wheels 73, the outer faces of which engage with the gear wheels 7st. The shaft 61 carries at its upper end a friction wheel as shown in Figs. 7 and 10, which is controlled by a friction band 11 through a lever 12. By moving the lever 12 the friction band 11 surrounding the wheel 62 is tightened or released as described later. The tube 65 is also provided at its upper end with a friction wheel 63, controlled through the lever 1-1 by a friction band 13. These levers encircle a shaft 60, which is capable of rotation in either direction. The lower end of the shaft 60 rests in a suitable bearing on the upper surface of the platform 57, and the levers 12 and 1 1 and the plate 51 are so arranged upon the shaft 60 that they slide vertically up and down on the same when the mechanism is raised from or lowered into. the coke oven. The shaft 60 carries a hand lever 60 terminating in a handle 92 as shown in Figs. 9 and 10, and by moving the same from rightto left the shaft is rotated a certain distance, actuating the levers'12 and 14:. If the levers 12 and letare moved in the direction shown by the arrow in Fig. 10, the two arms of the levers 9e and or, travel very nearly at rightangles to and maintain practically contant distances between the pins 91 and 91 and the points where the brake bands 11 and 13 come in contact with the surface of the wheels 62 and G3. The movement of the arm 92tshown in Fig. 10 is away from the points of contact of the bands with the surface of the wheels 62 and 63, and therefore the distance between the pin 91 on Fig. 10 and the point of contact is lengthened and the brake bands 11. and 13 grip the friction wheels, and hold the mechanism at rest. By reyersing the movement of the hand lever 0; When a rotary motion is imparted to the shaft 3 1 the wheels 62 and 63 will rotate with it, but when the tube is held stationary with the revolving tube 34:, the collar 76 by reason of the existence of the screw threaded surface on the cylinder 65 will move downward, carrying with it the cylinder 7S, and thereupon the links 66, which being pivoted in the head 67 on cylinder 78 will cause arms 31 to assume the horizontal position shown in Figs. 1 and 2. Simultaneously the shaft 6 1 is held stationary and thereupon the arms 33 are caused to move outward by means of the cog wheel mecha nism shown in F 7 and S and to cause the outer portions 32 to assume the extended po sitions shown in Figs. 1 and 2.

The tube 34:, and with it the tube 78, are raised and lowered in the platform 57, by means ofthe chain 24-. attached to the yoke 51 which passes over pulleys on the top of the tower 1i" and is connected with a drum 23 upon which it winds.

The method of operation is as follows: l l hen the apparatus is in use, the arms are drawn up in the position shown in F i, and the tube 78 is drawn up on the platform 57 so that the cross head 68 and the pin 77 are at the upper end of the slot 69 as shown in Fig. at. The carriage is then run along on the track to the point where the lower end of the tube 78 comes directly opposite the opening in the coke oven. The entire mechanism is then lowered by releasing the drum 23. ll hen the brake bands 11 and 13 are loose, the wheels 62 and 63 will, owing to the friction between each other and that between 63 and the sleeve 81, rotate with the leveling shaft or tube 3-1:. If, however, the brake bands 11 and 12-3 are tightened, as heretofore described, the friction wheels 62 and will be prevented from rotating with the tube 3-1, thus causing a relative motion between the wheels (3:2 and 63 and the shaft 3%, in the one case closing, and in the other case opening the arms 81 with their inner tubes 32, according to the direction of the rotation. The arms 31 cannot be extended beyond a certain maximum position, nor can they be retracted after they close up upon each other. In either case, if the arms are in their innermost position, the rotation of the shaft in one direction and the applictu tion of the brakes will have no effect on the arms, they will be already closed and the wheels 69 and 63 will therefore rotate with arm 60 the brake bands are released.

the shaft. 1f now the motion of the shaft 34'. is reversed, the application of the brakes to the wheels 62 and 63 will cause the arms 31 to be opened and expanded. 1f the arms 31 are at their outermost position, the rotation of the shaft in one direction and the ap plication of the brakes will have no effect on. their position, and therefore none upon the wheels 62 and 63; but by reversing the movement of the brakes will be allowed to operate, thus preventing the wheels from ro tating and allowing the arms to be closed. While the arms 31 are being lowered to the horizontal position shown in Figs. 1 and '2, as is accomplished by the action of the brake 13 on the wheel (33, they are extended by means of the action of the brake 11 on the wheel 62 which causes the shaft 64-v to remain stationary with reference to the shaft by means of which the horizontal shafts 33 are turned and the arms 52 extended by means of the movement of the collar on the so 'ew threaded surface of the shaft I claim as my invention:

1. 111 a traveling coal leveling machine for use with beehive ovens, the combination of a vertical member arranged to be lowered from the carriage through the eye of an oven; a leveling arm connected therewith composed of extensible parts and means actuated by the driving mechanism and controlled manually for extending the parts of the arm so as to malte it of any desired length, after introduction into the coke oven.

2. In a traveling coal leveling machine for use with beehive ovens, the combination of a vertical member arranged to be lowered from the carriage through the eye of an even; a leveling arm connected therewith composed of extensible parts and means actuated by the driving mechanism and controlled manually for extending the parts of the arm so as to make it of any desired length, after introduction into the coke oven, and for retracting them to their original position after the leveling has been completed.

3. In a traveling coal leveling machine for use with beehive ovens, the combination of a vertical member arranged to be lowered from the carriage through the eye of a coke oven; means for lowering said member into the even; an arm connected with the vertical member composed of extensible parts, means for dropping the arm to a horizontal position, means for extending the parts of the arm while being lowered so as to ma c it of any desired length; and means for rotating parts of the vertical member in different directions as may be desired, substantially as described.

l. In a traveling coal leveling machine for use with bee hive ovens, the combination of a suitable shaft arranged to be lowered from a carria e throu h the e e of a coke A c: o .l

oven, means for lowering the shaft into the coke oven, an arm connected with the shaft rranged to be lowered, composed of extensible parts, means for dropping the arm to a horizontal position, means for extending the parts of the arm while being so lowered, so as to malre it of any required length, means for rotating the extended arm in the furnace, means for retracting the parts of the arm, and means for folding them up and lifting the shaft and arms out of the oven when the leveling operation is completed.

5. In a traveling coal leveling machine for use with bee hive ovens, the combination of a vertical member arranged to be lowered from the carriage through the eye of a coke oven; means for lowering said member into the oven; an arm connected with the vertical member composed of extensible telescopic parts, means for dropping the arm to a horizontal position and means for extending the telescopic parts of the arm while being lowered so as to make it of any desired length, and means for rotating parts of the vertical member substantially as described.

6. In a traveling coal leveling machine for use with bee hive ovens, the combination of a suitable shaft arranged to be lowered from a carriage through the eye of a coke oven, means for lowering the shaft into the coke oven, an arm connected with the shaft arranged to be lowered, composed of exten sible telescopic parts, means for dropping the arm to a horizontal position, means for extending the parts of the arm while being so lowered, so as to extend the telescopic parts of the arm to any required length, means for rotating the extended arm in the furnace, means for retracting the telescopic parts of the arm, and means for folding them up and lifting the shaftand arms out of the oven when the leveling operation is completed.

7. In a traveling coal leveling machine for use with beehive ovens, the combination of a vertical hollow shaft arranged to be lowered from the carriage through the eye of an oven; two arms connected with the shaft, arranged to be lowered therewith; cylinder sliding on the shaft, connected with the arms, whereby when the cylinder is lowered the arms are pushed out to a horizontal position; and means within the cylinder for extending and retracting the arms to any required distance, and means for rotating the shaft substantially as described.

8. In a travedng coal leveling machine for use with beehive ovens, the combination of a vertical hollow shaft arranged to be lowered from the carriage through the eye of an even; two arms connected with the shaft, arranged to be lowered therewith; a cylinder sliding on the shaft, connected with the arms, whereby when the cylinder is lowered the arms are pushed out to a horizontal position; a rod within the cylinder, enga ing by gear mechanism with rods within the arms, for extending and retracting the arn s to any required distance, and means for retating the shaft substantially as described.

9. In a coal leveling machine for use with beehive ovens, the combination of a vertical shaft composed of two cylinders placed one within the other, the outerof which is arranged to rotate in suitable bearings on a movable carriage, the whole being arranged to be raised and lowered through the eye of an oven; a central cylinder within the inner cylinder and rotating with the same to which two arms are pivotally connected; a cylinder sliding on the lower end of the central cylinder, whereby when the same is lowered, the arms are pushed out to a horizontal position; a shaft within the central cylinder, engaging with devices which extend or retract the arms to required distance; devices for holding central shaft stationary. and rotating the oth r parts of the mechanism in the inner cylinder independently of each other, and means for r0 tating the entire mechanism in the oven substantially as described.

10. in a coal leveling machine for use with beehiveovens, the combination of a ver tical shaft composed of two cylinders placed one within the other, the cute of which is arranged to rotate in suitable bearings on a movable carriage, the whole being arranged to be raised and lowered through the eye of an oven; a central cylinder within the inner cylinder to which two arms are pivotally connecteo; cylinder sliding on the lower end of the central cylinder, whereby when the same is lowered, the arms are pushed out to horizontal position; a shaft ithin the central cylinder, engaging with gear wheels which actuate rods which extend or retract the arms to any required distance; devices for holding the central shaft stationary and rotating the other parts of the mechanism and the inner cylinder independently of each other, and means for rotating the en tire mechanism n the oven substantially as described.

In testimony, that I claim the foregoing my invention, I have signed my name in presence of two witnesses, this 30 day of June 1908.

lVlLLlAM SANGSTER.

ll itnesses Conn Mansrrann, J. E. Romans.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner or Patents. Washington, D. C. 

